Basic HTML version of Foils prepared 23 August 1998

Foil 33 Distributed Shared Memory Machines

From CPS615-Introduction-Course,Driving Technology and HPCC Current Status and Futures CPS615 Basic Simulation Track for Computational Science -- Fall Semester 98. by Geoffrey C. Fox, (Some Culler, Koelbel material)
1 Combining the (dis)advantages of shared and distributed memory
2 Lots of hierarchical designs are appearing.
  • Typically, "shared memory nodes" with 4 to 32 processors
  • Each processor has a local cache
  • Processors within a node access shared memory
  • Nodes can get data from or put data to other nodes' memories
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